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Tap water quality report

Sheridan, City of

EPA monitoring tested this supplier for 102 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
8
detected
6,494
people served
0
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Surface water
Ownership
Local government
Counties served
Yamhill

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
106
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2025-07-01
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Archived 2025-01-01 → 2025-12-31
MR Monitoring Resolved 2024-10-01 → 2024-10-31
MR Monitoring Resolved 2024-10-01 → 2024-10-31
MR Monitoring Resolved 2024-10-01 → 2024-10-31
MR Monitoring Resolved 2024-08-01 → 2024-08-31
MR Monitoring Resolved 2024-08-01 → 2024-08-31
MR Monitoring Resolved 2024-08-01 → 2024-08-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
980 µg/L 75%
of the EPA limit 1300 µg/L
worst single sample: 1210 µg/L
37/60 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 29/29 LCR 2025
TTHM
35.715 µg/L 45%
of the EPA limit 80 µg/L
worst single sample: 37.2 µg/L
22/22 SYR4 2012–2019
Lead
20 µg/L 133%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 33.2 µg/L
21/60 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
19.71 µg/L 33%
of the EPA limit 60 µg/L
worst single sample: 20.9 µg/L
18/22 SYR4 2012–2019
Nitrate
394 µg/L 3.9%
of the EPA limit 10000 µg/L
 4/34 SYR4 2012–2019
Combined Radium (-226 And -228)
2.82 pCi/L 56%
of the EPA limit 5 pCi/L
worst single sample: 2.9 pCi/L
2/5 SYR4 2012–2018
Pentachlorophenol
0.1100 µg/L 11%
of the EPA limit 1 µg/L
 1/13 SYR4 2013–2019
94 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SHERIDAN, CITY OF
Phone
503-843-2660
Email
[email protected]

Frequently asked questions about Sheridan, City of

Is Sheridan, City of tap water safe to drink?

EPA monitoring detected 8 contaminants in Sheridan, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Sheridan, City of's water?

EPA monitoring detected Copper, Lead, TTHM, Lead, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Sheridan, City of serve?

Sheridan, City of reports serving 6,494 people in Oregon, per its EPA record.

Has Sheridan, City of had any water quality violations?

The EPA has 106 violations on file for Sheridan, City of, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.